IRON DEFICIENCY

Hmmm 38 weeks now and my iron is low af, I don’t really want to take the tablets though anymore.. I have been taking them and I’m still tired and I’m too constipated... that alone is not nice .. I don’t want to go into labour being constipated.. cause it will basically be like having two pains at once and I know I would probably poop myself again because I’d be so constipated by the time I go into labour.. should I just stop taking the pills ? They’re not even working😂 I’m still drained